________ it is expected that students come to college with the ability to solve most problems in their study by themselves , this is not always the case.
We’ve ___ a girlfriend of Sue’s to take her home.
If one of the computers ___, the whole networks would be unable to work.
After the fire ___ in the shop, Tom ___ the manager.
Thousands of foreigners were ___ to the Shanghai World Expo the day it opened.
In communication, a smile is usually ___ strong sign of a friendly and ___ open attitude.